Mayoral candidate Josh Kraft took aim at his opponent, incumbent Michell Wu, over the weekend, blasting her for spending over half a million dollars to prepare for her grilling by the House

Ohio, confronted Denver Mayor Mike Johnston for upholding “sanctuary" city policies that allowed an illegal immigrant to assault a federal officer.

The mayors of Boston, Chicago, Denver and New York City testified before the Republican-led House Oversight Committee Wednesday on their immigration policies.

Republican members of Congress hammered four Democratic mayors about their so-called sanctuary city policies, accusing them of endangering Americans and threatening to prosecute local officials.

Here's an explanation of “sanctuary city” policies that will be debated as Boston Mayor Michelle Wu testifies before Congress.

Boston Mayor Michelle Wu testified before a House committee on so-called "sanctuary cities" in Washington Wednesday.

Here's a rundown of several key claims made during the hearing, and our reporting on the issues and numbers referenced by officials.